21454784

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:373

約数の個数: 56

約数和(自身を含む): 46469808

約数和(自身を除く): 25015024

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 107, 208, 214, 241, 416, 428, 482, 832, 856, 964, 1391, 1712, 1928, 2782, 3133, 3424, 3856, 5564, 6266, 6848, 7712, 11128, 12532, 15424, 22256, 25064, 25787, 44512, 50128, 51574, 89024, 100256, 103148, 200512, 206296, 335231, 412592, 670462, 825184, 1340924, 1650368, 2681848, 5363696, 10727392, 21454784]

約数ペア:

[(1, 21454784), (2, 10727392), (4, 5363696), (8, 2681848), (13, 1650368), (16, 1340924), (26, 825184), (32, 670462), (52, 412592), (64, 335231), (104, 206296), (107, 200512), (208, 103148), (214, 100256), (241, 89024), (416, 51574), (428, 50128), (482, 44512), (832, 25787), (856, 25064), (964, 22256), (1391, 15424), (1712, 12532), (1928, 11128), (2782, 7712), (3133, 6848), (3424, 6266), (3856, 5564)]